From 369fd9b92bbc80d9dc504bbc5e1b92d93ad907b9 Mon Sep 17 00:00:00 2001
From: Yunhe Liu <yunliu@equinix.com>
Date: Wed, 9 Aug 2023 19:04:17 +0000
Subject: [PATCH 1/3] adding health check routes

---
 app/routes.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/routes.go b/app/routes.go
index e8f70029..77128be0 100644
--- a/app/routes.go
+++ b/app/routes.go
@@ -19,7 +19,7 @@ func (a *App) routes() {
 	a.clusterRoutes(apiV1)
 	a.configRoutes(apiV1)
 	a.targetRoutes(apiV1)
-
+	a.healthRoutes(apiV1)
 }
 
 func (a *App) clusterRoutes(r *mux.Router) {
@@ -59,3 +59,7 @@ func (a *App) targetRoutes(r *mux.Router) {
 	r.HandleFunc("/targets/{id}", a.handleTargetsPost).Methods(http.MethodPost)
 	r.HandleFunc("/targets/{id}", a.handleTargetsDelete).Methods(http.MethodDelete)
 }
+
+func (a *App) healthRoutes(r *mux.Router) {
+	r.HandleFunc("/healthz", a.handleHealthzGet).Methods(http.MethodGet)
+}

From 45eed910936967792c42f4ede286d1311eab4ccd Mon Sep 17 00:00:00 2001
From: Yunhe Liu <yunliu@equinix.com>
Date: Wed, 9 Aug 2023 19:24:21 +0000
Subject: [PATCH 2/3] add health check handler

---
 app/api.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/api.go b/app/api.go
index 156d25bc..f15372d3 100644
--- a/app/api.go
+++ b/app/api.go
@@ -287,6 +287,10 @@ func (a *App) handleClusteringGet(w http.ResponseWriter, r *http.Request) {
 	w.Write(b)
 }
 
+func (a *App) handleHealthzGet(w http.ResponseWriter, r *http.Request) {
+	w.Write([]byte("I'm healthy!\n"))
+}
+
 func (a *App) handleClusteringMembersGet(w http.ResponseWriter, r *http.Request) {
 	if a.Config.Clustering == nil {
 		return

From ed01699366bd59e527f4d9f65ccce0cf5565a433 Mon Sep 17 00:00:00 2001
From: Yunhe Liu <yunliu@equinix.com>
Date: Wed, 9 Aug 2023 20:38:25 +0000
Subject: [PATCH 3/3] make health check reponse idiomatic

---
 app/api.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/app/api.go b/app/api.go
index f15372d3..d85e8c25 100644
--- a/app/api.go
+++ b/app/api.go
@@ -288,7 +288,14 @@ func (a *App) handleClusteringGet(w http.ResponseWriter, r *http.Request) {
 }
 
 func (a *App) handleHealthzGet(w http.ResponseWriter, r *http.Request) {
-	w.Write([]byte("I'm healthy!\n"))
+	s := map[string]string{"status": "healthy",}
+	b, err := json.Marshal(s)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		json.NewEncoder(w).Encode(APIErrors{Errors: []string{err.Error()}})
+		return
+	}
+	w.Write(b)
 }
 
 func (a *App) handleClusteringMembersGet(w http.ResponseWriter, r *http.Request) {